| 温度对F-12化学结构的影响研究 |
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| 引用本文： | 李海斌,阳建红,钟建强,张晖.温度对F-12化学结构的影响研究[J].化学推进剂与高分子材料,2009,7(5):50-53. |
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| 作者姓名： | 李海斌 阳建红 钟建强 张晖 |
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| 作者单位： | 1. 第二炮兵工程学院,陕西,西安,710025
2. 第二炮兵青州士官学校,山东,青州,262500 |
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| 摘 要： | 采用TG-FTIR、ATR-FTIR、DSC、DMA以及不同温度下的XRD研究F-12随温度升高导致的结构变化。结果表明:500℃以下F-12无明显分子结构的变化,温度主要对纤维的晶体结构造成影响,纤维结晶度在120℃左右开始随温度增加而上升,在350℃附近达到最大,受结晶度变化的影响,纤维的储能模量在180℃以下随温度有轻微上升,之后由于非晶相发生玻璃化转变,储能模量急剧下降。
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| 关 键 词： | 芳纶 F-12 分子结构 结晶度 |
Influence of Temperature on Chemical Structure of F-12 |
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| LI Hai-bin,YANG Jian-hong,ZHONG Jian-qiang,ZHANG Hui.Influence of Temperature on Chemical Structure of F-12[J].Chemical Propellants & Polymeric Materials,2009,7(5):50-53. |
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| Authors: | LI Hai-bin YANG Jian-hong ZHONG Jian-qiang ZHANG Hui |
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| Affiliation: | LI Hai-bin1,YANG Jian-hong1,ZHONG Jian-qiang2,ZHANG Hui1 |
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| Abstract: | The structure change of F-12 with the rise of temperature was investigated by TG-FTIR, ATR-FTIR, DSC, DMA and XRD at different temperatures. The results show that there is no obvious molecular structure change under 500℃, and temperature mainly affects the crystal structure of the fiber. Its crystallinity begin to increase with the rise of temperature at about 120℃, and achieve the maximum value at about 350℃. Meanwhile, energy storage module of the fiber increases slightly with temperature under 180℃ due to the change of the crystallinity, then drops sharply due to glass transition of amorphous phase. |
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| Keywords: | F-12 |
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